Medicare Advantage in Columbia County, Arkansas
2,344 people in Columbia County, Arkansas were enrolled in Medicare Advantage in October 2026, 44.5% of 5,266 eligible beneficiaries (+1.6 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 64% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 4,866 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 23 members here are in plans that terminate or leave the county. MA plans offered go from 24 to 22.
Parent organizations in Columbia County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,486 | −91 | 63.9% |
| Humana Inc. | 644 | +256 | 27.7% |
| Select Founders, LLC | 81 | +6 | 3.5% |
| Centene Corporation | 63 | −29 | 2.7% |
| CVS Health Corporation | 34 | −22 | 1.5% |
| USAble Mutual Insurance Company | 19 | −14 | 0.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 415 beneficiaries in Columbia County were assigned to 28 Medicare Shared Savings Program ACOs, 16.3% of assignable Original Medicare beneficiaries. Together, roughly 54% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.